Tray support, CCS assembly and battery module

Abstract

The utility model belongs to the technical field of batteries, and discloses a tray support, a CCS assembly and a battery module. The tray bracket comprises a tray body, a hot riveting column and a plurality of connecting sections, the tray body is arranged at the top of the battery cell assembly, and a plurality of connecting holes are formed in the tray body; the hot riveting columns correspondingly penetrate through the connecting holes and are arranged above the connecting holes in a protruding mode. The hot riveting column is connected with the edge of the connecting hole through a plurality of connecting sections, the connecting sections are arranged at intervals in the circumferential direction of the hot riveting column, and the hot riveting column protruding out of the upper portion of the connecting hole is used for being in hot riveting with an aluminum bar or an FPC. The tray bracket, the CCS assembly and the battery module can be broken in time at the hot riveting position when the battery cell expands, so that the tray body is prevented from being broken due to stress, and the FPC is prevented from being damaged by traction force.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially, relates to a tray support, CCS subassembly and battery module. BACKGROUND

[0002] The tray, FPC and aluminum row in the battery module are integrated into one for spare parts, wherein the tray protrudes a hot riveting column, the FPC and the aluminum row are both provided with a through hole and are sleeved on the hot riveting column, and are hot riveted with the hot riveting column to realize the fixation of the three, but when the three are installed on the battery cell assembly, with the extension of the use time, the single battery cell in the battery cell assembly expands, since the aluminum row is welded on the pole of the adjacent two battery cells, when the battery cell expands, the aluminum row also deforms, which indirectly causes the hot riveting column corresponding to the aluminum row to deform, easily drives the tray body to deform, causes the tray body to break, and easily causes the risk of electrical safety failure, at the same time, the battery cell expansion drives the FPC to deform, but the hot riveting column position is fixed, which causes the edge of the through hole of the hot riveting column and the FPC to contact, and easily causes the FPC to be damaged.

[0003] Therefore, it is urgent to design a tray support, CCS subassembly and battery module to solve the above problems. UTILITY MODEL CONTENTS

[0004] One purpose of the utility model is to provide a tray support, which can break at the hot riveting position in time when the battery cell expands, avoids the tray body from breaking under stress, and avoids the FPC from being damaged by traction.

[0005] Another purpose of the utility model is to provide a CCS subassembly, which is not easy to break, the FPC is not easy to be damaged, and the safety performance is improved.

[0006] Still another purpose of the utility model is to provide a battery module, the service life of the CCS subassembly is longer, and the safety performance of the battery module is higher.

[0007] To achieve this purpose, the utility model adopts the following technical scheme:

[0008] The tray support comprises:

[0009] The tray body is arranged on the top of the battery cell assembly, and a plurality of connecting holes are formed in the tray body;

[0010] The hot riveting column corresponds to the connecting hole, and the hot riveting column protrudes above the connecting hole; and

[0011] A plurality of connecting segments are connected between the edge of the connecting hole and the hot riveting column, the plurality of connecting segments are arranged at intervals along the circumference of the hot riveting column, and the hot riveting column protruding above the connecting hole is used for hot riveting with the aluminum row or the FPC.

[0012] As an optional solution, the tray is a blister tray, and the connecting sections are two.

[0013] The tray support is a plastic support, and the connecting sections are four.

[0014] As an optional solution, the tray body is provided with a first avoiding groove on the side of the hot riveting column, and the connecting sections on the side of each hot riveting column are configured to be at least partially on the groove bottom of the first avoiding groove.

[0015] As an optional solution, the tray body is provided with a plurality of weight-reducing holes, and the weight-reducing holes are arranged in a preset direction.

[0016] The CCS assembly comprises:

[0017] The aluminum bars and the tray support are provided with a plurality of aluminum bar grooves, each of which contains an aluminum bar, and the groove bottom of each aluminum bar groove is provided with at least two hot riveting columns, and the groove bottom of the aluminum bar groove is provided with an avoiding hole, and the aluminum bar is connected with two adjacent battery cells in the battery cell assembly through the avoiding hole.

[0018] The FPC is arranged on the upper side of the tray body, and the FPC is provided with a via hole to be hot riveted with the corresponding hot riveting column.

[0019] The connecting piece is connected between each aluminum bar and the FPC.

[0020] As an optional solution, the connecting piece is a nickel piece.

[0021] As an optional solution, the aluminum bars are arranged in two rows, and each row of aluminum bars is provided with an FPC.

[0022] As an optional solution, the aluminum bar groove is provided with a second avoiding groove on the side facing the FPC, and part of the connecting piece is arranged in the second avoiding groove.

[0023] As an optional solution, one side of the aluminum bar is connected with a first pole of the battery cell, and the other side of the aluminum bar is connected with a second pole of the adjacent battery cell, and one of the first pole and the second pole is a positive pole, and the other is a negative pole.

[0024] The battery module comprises:

[0025] The CCS assembly described above;

[0026] The battery cell assembly comprises a plurality of battery cells arranged in a preset direction, and the CCS assembly is arranged above the battery cell assembly.

[0027] An end plate is located at one end of the battery cell assembly in the preset direction, and one end of the FPC is connected to the end plate.

[0028] The utility model discloses beneficial effect lies in:

[0029] The utility model provides a tray support, after installing FPC and aluminium row, when installing to the above of battery cell assembly, aluminium row and the pole post of battery cell are connected, when battery cell uses a period of time and expands, the interval of adjacent two battery cells becomes big, and aluminium row is affected by the size of expansion force and becomes big, because the deformation of tray is small, aluminium row can drive tray to deform at the position of hot riveting, at this moment, because hot riveting post and tray body are connected only through connecting section, and the connecting strength is low, before the big deformation of tray, the connecting section is broken in advance by the pulling force of aluminium row, and then the connection between aluminium row and tray body is disconnected, the force transmission route is disconnected, and the deformation of tray body is prevented, and the same reason, because the expansion deformation of battery cell, FPC can deform along, but at the position of hot riveting, because the deformation of tray is small, FPC can be blocked and deformed by hot riveting post, before the damage of FPC, the blocking force has disconnected the connecting section, and then the further damage of FPC is prevented, and the normal operation of electricity is guaranteed.

[0030] The utility model also provides a CCS assembly includes, including aluminium row, FPC, connecting sheet and above tray support, tray support sets up a plurality of aluminium row grooves, and one aluminium row is inducted in each aluminium row groove, and each aluminium row groove is provided with a plurality of hot riveting posts, and the groove bottom of aluminium row groove has an avoiding hole, and aluminium row is connected with adjacent two battery cells through the avoiding hole, FPC is placed on the upside of tray body, and the via hole is set up on FPC to be hot riveted with corresponding hot riveting post, and one connecting sheet is connected between each aluminium row and FPC.

[0031] The utility model also provides a battery module, and the battery module includes battery cell assembly, end plate and above CCS assembly, and the battery cell assembly includes a plurality of battery cells arranged in a preset direction, and the CCS assembly is located above the battery cell assembly, and one end of the FPC is connected to the end plate. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the explosion diagram of the battery module after one FPC and one aluminium row are provided by the utility model embodiment;

[0033] Figure 2 It is Figure 1 It is the enlarged view of the hot riveting position of the hot riveting post and the aluminium row in A place in Fig.

[0034] Figure 3 is Figure 1 is an enlarged view of the hot riveting position of the hot riveting column and the FPC at B in the middle;

[0035] Figure 4 is a structural schematic view of a battery module provided by an embodiment of the present application.

[0036] In the figure:

[0037] 10, tray support; 11, tray body; 111, aluminum slot; 112, first avoiding slot; 113, weight-reducing hole; 114, second avoiding slot; 115, connecting hole; 116, avoiding hole; 12, hot riveting column; 13, connecting section;

[0038] 20, aluminum row; 21, protrusion; 22, connecting part;

[0039] 30, FPC;

[0040] 40, connecting sheet;

[0041] 50, electric core assembly; 51, electric core; 511, positive electrode; 512, negative electrode;

[0042] 60, end plate. DETAILED DESCRIPTION

[0043] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, rather than all the structures.

[0044] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature "under", "below" and "under surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.

[0046] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0047] The embodiment provides a tray support 10, which can timely break at the position of hot riveting when the battery cell 51 expands, avoids that the tray body 11 is broken under stress, and avoids that the FPC 30 is damaged under traction. Figures 1-3 As shown in the figure, the tray support 10 comprises a tray body 11, a hot riveting column 12 and a plurality of connecting sections 13, the tray body 11 is arranged at the top of the battery cell assembly 50, a plurality of connecting holes 115 are formed in the tray body 11; the hot riveting column 12 is arranged through the connecting hole 115, and the hot riveting column 12 protrudes above the connecting hole 115; the edge of the hot riveting column 12 and the connecting hole 115 are connected through the plurality of connecting sections 13, the plurality of connecting sections 13 are arranged in the circumferential direction of the hot riveting column 12 and are spaced apart, and the hot riveting column 12 protruding above the connecting hole 115 is used for hot riveting with the aluminum row 20 or the FPC 30.

[0048] When the tray support 10 is uniformly installed above the battery cell assembly 50 after the FPC 30 and the aluminum row 20 are installed, the aluminum row 20 is connected with the pole of the battery cell 51. When the battery cell 51 is used for a period of time and then expands, the distance between the adjacent two battery cells 51 becomes larger, and the aluminum row 20 is subjected to the expansion force and becomes larger in size. Since the deformation of the tray is small, the aluminum row 20 deforms the tray body 11 at the position where the aluminum row 20 and the tray body 11 are hot riveted. At this time, since the hot riveting column 12 and the tray body 11 are connected only through the connecting section 13, the connecting strength is low. Before the tray body 11 is deformed greatly, the connecting section 13 is broken by the pulling force of the aluminum row 20 in advance, thereby disconnecting the connection between the aluminum row 20 and the tray body 11 and breaking the force transmission route, so as to prevent the deformation of the tray body 11. Similarly, due to the expansion and deformation of the battery cell 51, the FPC 30 deforms accordingly. However, at the position where the FPC 30 is hot riveted with the hot riveting column 12, the FPC 30 is blocked from deforming by the hot riveting column 12 due to the small deformation of the tray body 11. Before the FPC 30 is damaged, the blocking force has disconnected the connecting section 13, thereby preventing the FPC 30 from being further pulled and damaged, so as to ensure the normal operation of the electrical equipment.

[0049] Optionally, as shown in Figure 2 and Figure 4 , the tray body 11 is provided with a first avoiding groove 112 on the circumferential side of the hot riveting column 12, and the plurality of connecting sections 13 on the circumferential side of each hot riveting column 12 are configured as at least part of the groove bottom of the first avoiding groove 112. Through the above-mentioned arrangement, the thickness of the material in the region where the connecting hole 115 is arranged is further thinned, and the connecting strength of the connecting section 13 is further reduced. The first avoiding groove 112 at the position where the aluminum row 20 is hot riveted and the first avoiding groove 112 at the position where the FPC 30 is hot riveted are not identical in form, but have similar effects.

[0050] Optionally, the tray support 10 is a plastic suction support, and the connecting section 13 is two. It can be understood that the strength of the tray support 10 manufactured by the plastic suction process is high, and the number of connecting sections 13 can be appropriately reduced to ensure that the connecting strength is small enough.

[0051] In this embodiment, the tray support 10 is a plastic support, and the connecting section 13 is four. It can be understood that the strength of the plastic support is lower than that of the tray support 10 manufactured by the plastic suction process, and the number of connecting sections 13 can be appropriately increased.

[0052] Optionally, as shown in Figure 3 , the tray body 11 is provided with a plurality of weight-reducing holes 113. The weight of the tray support 10 can be reduced, thereby realizing the light weight of the battery module.

[0053] The present embodiment also provides a CCS assembly, as shown in Figures 1-3As shown, the CCS assembly includes the aluminum bars 20, the FPCs 30, the connecting sheets 40, and the tray support 10. The tray support 10 is provided with a plurality of aluminum bar grooves 111, each of which contains an aluminum bar 20. Each aluminum bar groove 111 is provided with at least two hot riveting columns 12. The groove bottom of the aluminum bar groove 111 is provided with an avoiding hole 116, and the aluminum bar 20 is connected with the adjacent two battery cells 51 through the avoiding hole 116. The FPC 30 is arranged on the upper side of the tray body 11, and the FPC 30 is provided with a via hole for hot riveting with the corresponding hot riveting column 12. Each aluminum bar 20 and FPC 30 are connected with a connecting sheet 40. Through the above arrangement, the electrical connection between the adjacent battery cells 51 and the information processing are realized. In this way, the tray body 11 is not easy to break, the FPC 30 is not easy to be damaged, and the safety performance is improved.

[0054] Optionally, the connecting sheet 40 is a nickel sheet, which can better realize the connection between the aluminum bar 20 and the FPC 30.

[0055] Optionally, as shown in the first aspect, Figure 2 Optionally, as shown in the first aspect,

[0056] Optionally, as shown in the first aspect, Figure 3

[0057] Optionally, as shown in the first aspect, Figure 2 Optionally, one side of the aluminum bar 20 is connected with the first pole of the battery cell 51, and the other side of the aluminum bar 20 is connected with the second pole of the adjacent battery cell 51. One of the first pole and the second pole is the positive pole 511, and the other is the negative pole 512. It can be understood that a plurality of battery cells 51 are connected in a row, each battery cell 51 has a positive pole 511 and a negative pole 512, and the arrangement directions of the positive pole 511 and the negative pole 512 of the adjacent two battery cells 51 are opposite. When one aluminum bar 20 connects the adjacent two battery cells 51, one side is connected with the negative pole 512, and the other side is connected with the positive pole 511.

[0058] Optionally, the aluminum bar 20 includes two connecting portions 22 and a protrusion 21 connecting the two connecting portions 22. The two connecting portions 22 are connected with the positive pole 511 and the negative pole 512 respectively. The protrusion 21 enables the aluminum bar 20 to have a certain deformation capacity, which can adapt to a small amount of expansion of the battery cell 51.

[0059] The embodiment also provides a battery module, as shown in the first aspect, Figure 3 ​As shown, the battery module comprises the cell assembly 50, the end plate 60 and the above-mentioned CCS assembly, the cell assembly 50 comprises a plurality of cells 51 arranged along a preset direction, and the CCS assembly is located above the cell assembly 50; the end plate 60 is located at one end of the cell assembly 50 in the preset direction, and one end of the FPC 30 is connected to the end plate 60. The above-mentioned battery module has a longer service life and higher safety performance by adopting the above-mentioned CCS assembly.

[0060] Obviously, the above embodiments of the present application are merely examples for clear illustration of the present application, and are not a limitation on the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A tray support, characterised in that, The tray body (11) is provided on the top of the battery cell assembly (50), and the tray body (11) is provided with a plurality of connecting holes (115); The hot riveting column (12) is arranged corresponding to the connecting hole (115), and the hot riveting column (12) is arranged above the connecting hole (115); and A plurality of connecting segments (13) are arranged between the hot riveting column (12) and the edge of the connecting hole (115), and the plurality of connecting segments (13) are arranged along the circumference of the hot riveting column (12) and protrude above the connecting hole (115), and the hot riveting column (12) is used for hot riveting with the aluminum row (20) or the FPC (30). The tray is a plastic tray, and the connecting segment (13) is two; or 2. The tray support of claim 1, wherein, The tray support is a plastic support, and the connecting segment (13) is four. The tray body (11) is provided with a first avoiding groove (112) on the circumferential side of the hot riveting column (12), and the plurality of connecting segments (13) on the circumferential side of each hot riveting column (12) are arranged to be at least partially arranged on the groove bottom of the first avoiding groove (112).

3. The tray support of claim 1, wherein, The tray body (11) is provided with a plurality of weight-reducing holes (113), and the plurality of weight-reducing holes (113) are arranged along a predetermined direction.

4. The tray support of claim 1, wherein, The aluminum row (20) and the tray support according to any one of claims 1-4 are provided with a plurality of aluminum row grooves (111), each of the aluminum row grooves (111) contains one aluminum row (20), the groove bottom of each aluminum row groove (111) is provided with at least two hot riveting columns (12), the groove bottom of the aluminum row groove (111) is provided with an avoiding hole (116), and the aluminum row (20) is connected with two adjacent battery cells (51) in the battery cell assembly (50) through the avoiding hole (116); 5. A CCS assembly characterized by The FPC (30) is arranged on the upper side of the tray body (11), and the FPC (30) is provided with a via hole for hot riveting with the corresponding hot riveting column (12); The connecting sheet (40) is arranged between each aluminum row (20) and the FPC (30). The connecting sheet (40) is a nickel sheet. The aluminum row (20) is arranged in two rows, and each row of the aluminum row (20) is provided with one FPC (30).

6. The CCS assembly of claim 5, wherein, The aluminum row groove (111) is provided with a second avoiding groove (114) on the side facing the FPC (30), and part of the connecting sheet (40) is arranged in the second avoiding groove (114).

7. The CCS assembly of claim 5, wherein, One side of the aluminum row (20) is connected with the first pole of the battery cell (51), the other side of the aluminum row (20) is connected with the second pole of the adjacent battery cell (51), one of the first pole and the second pole is a positive electrode (511), and the other is a negative electrode (512).

8. The CCS assembly of claim 5, wherein, The CCS assembly according to any one of claims 5-9; 9. The CCS assembly of claim 5, wherein, The battery cell assembly (50) comprises a plurality of battery cells (51) arranged along a predetermined direction, and the CCS assembly is arranged above the battery cell assembly (50).

10. A battery module, characterized by ​ ​ ​ An end plate (60) is located at one end of the battery cell assembly (50) in the preset direction, and one end of the FPC (30) is connected to the end plate (60).

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